<template>
    <div class="goodsinfo-container">

        <transition
          @brfore-enter="beforeEnter"
          @enter="enter"
          @after-enter="afterEnter">
            <div class="ball" v-show="ballFlag" ref="ball"></div>
        </transition>

        <div class="mui-card">
			<div class="mui-card-content">
				<div class="mui-card-content-inner">
					<swiper :lunbotuList="lunbotu" :isfull="false"></swiper>
				</div>
			</div>
		</div>


        <div class="mui-card">
			<div class="mui-card-header">{{ goodsinfo.title }}</div>
			<div class="mui-card-content">
				<div class="mui-card-content-inner">
					<p class="price">
                        市场价:  <del>￥{{ goodsinfo.market_price }}</del>&nbsp;&nbsp;
                        销售价: <span class="now_price">￥{{ goodsinfo.sell_price }}</span>
                    </p>
                    <p>购买数量: 
                        <numbox 
                          @getcount="getSelectedCount"
                          :max="goodsinfo.stock_quantity">
                        </numbox>
                    </p>
                    <p>
                        <mt-button type="primary" size="small">立即购买</mt-button>
                        <mt-button type="danger" size="small" @click="addShopCar">加入购物车</mt-button>
                    </p>
				</div>
			</div>
		</div>


        <div class="mui-card">
			<div class="mui-card-header">商品参数</div>
			<div class="mui-card-content">
				<div class="mui-card-content-inner">
					<p>商品货号: {{ goodsinfo.goods_no }}</p>
                    <p>库存情况：{{ goodsinfo.stock_quantity }}</p>
                    <p>上架时间：{{ goodsinfo.add_time | dateFormat }}</p>
				</div>
			</div>
            <div class="mui-card-footer">
                <mt-button 
                  type="primary" 
                  size="large" 
                  plain
                  @click="goDesc(id)">图文介绍</mt-button>
                <mt-button 
                  type="danger" 
                  size="large" 
                  plain
                  @click="goComment(id)">商品评论</mt-button>
            </div>
		</div>
			

    </div>
</template>

<script>
import swiper from '../subcomponents/swiper.vue'
import numbox from '../subcomponents/goodsinfo_numbox.vue'

export default {
    data() {
        return {
            id: this.$route.params.id,
            lunbotu: [],
            goodsinfo: {},
            ballFlag: false,
            selectedCount: 1,
        }
    },
    created() {
        this.getLunbotu();
        this.getGoodsInfo()
    },
    methods: {
        getLunbotu() {
            this.$http.get('api/getthumimages/' + this.id).then(result => {
                if(result.body.status === 0) {
                    result.body.message.forEach(item => {
                        item.img = item.src;
                    })
                    this.lunbotu = result.body.message
                }
            })
        },
        getGoodsInfo() {
             this.$http.get('api/goods/getinfo/' + this.id).then(result => {
                if(result.body.status === 0) {
                    this.goodsinfo = result.body.message[0]
                }
            })
        },
        goDesc(id) {
            this.$router.push({ name: "goodsdesc", params: { id } });
        },
        goComment(id) {
            this.$router.push({ name: "goodscomment", params: { id } });
        },
        addShopCar() {
            this.ballFlag = !this.ballFlag

            const goodsinfo = {
                id: this.id,
                count: this.selectedCount,
                price: this.goodsinfo.sell_price,
                selected: true
            };
            this.$store.commit("addToCar", goodsinfo)
        },
        beforeEnter(el) {
            el.style.transform = "transition(0, 0)";
        },
        enter(el, done) {
            el.offsetWidth;

            const ballPosition = this.$refs.ball.getBoundingClientRect();
            const badgePosition = 
            document.getElementById('badge').getBoundingClientRect();

            const xDist = badgePosition.left - ballPosition.left;
            const yDist = badgePosition.top - ballPosition.top

            el.style.transform = `translate(${xDist}px, ${yDist}px)`
            el.style.transition = "all 0.5s cubic-bezier(.4, -0.3, 1, .68)"
            done()
        },
        afterEnter(el) {
            this.ballFlag = !this.ballFlag
        },
        getSelectedCount(count) {
            this.selectedCount = count;
            console.log('哈哈哈' + this.selectedCount)
        },

    },
    components: {
        swiper,
        numbox
    }
}
</script>

<style lang="scss" scoped>
.goodsinfo-container{
    background-color: #eee;
    overflow: hidden;

    .now_price{
        color: red;
        font-size: 16px;
        font-weight: bold;
    }
    .mui-card-footer{
        display: block;
        button{
            margin: 10px 0;
        }
    }


    .ball{
        width: 15px;
        height: 15px;
        border-radius: 50%;
        background-color: red;
        position: absolute;
        z-index: 99;
        top: 390px;
        left: 146px;
    }
}
</style>